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29100688987 = 433491939141
BaseRepresentation
bin11011000110100010…
…010100011001011011
32210010002002011120211
4123012202110121123
5434044234021422
621211344431551
72050066526566
oct330642243133
983102064524
1029100688987
1111383642397
1257819185b7
132989c801c6
1415a0c2b4dd
15b54bd6577
hex6c689465b

29100688987 has 8 divisors (see below), whose sum is σ = 29862786800. Its totient is φ = 28342470240.

The previous prime is 29100688963. The next prime is 29100689039. The reversal of 29100688987 is 78988600192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29100688987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29100685987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954564 + ... + 984577.

It is an arithmetic number, because the mean of its divisors is an integer number (3732848350).

Almost surely, 229100688987 is an apocalyptic number.

29100688987 is a deficient number, since it is larger than the sum of its proper divisors (762097813).

29100688987 is a wasteful number, since it uses less digits than its factorization.

29100688987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939533.

The product of its (nonzero) digits is 3483648, while the sum is 58.

The spelling of 29100688987 in words is "twenty-nine billion, one hundred million, six hundred eighty-eight thousand, nine hundred eighty-seven".

Divisors: 1 43 349 15007 1939141 83383063 676760209 29100688987